What precautions does Stack Overflow take to stop the cheaters?
I have almost 1500 points on Stack Overflow. It took me some time in answering questions, I anyway considered it worth the effort since everytime I asked a question I always got very valueable answers on Stack Overflow.
Now, what if user X simply cheats the system by creating a false user Y and using this last one to upvote almost all his/her own (user X) questions/answers?!
This would create a huge cheat on Stack Overflow reputation criteria, by creating a huge increase in user X's reputation.
Is there anything in Stack Overflow to prevent such a simple cheating scheme?